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Inland Feeder
The Inland Feeder is a high capacity water conveyance system that connects the California State Water Project to the Colorado River Aqueduct and Diamond Valley Lake. The Metropolitan Water District of Southern California designed the system to increase Southern California's water supply reliability in the face of future weather pattern uncertainties, while minimizing the impact on the San Francisco Bay/Sacramento–San Joaquin River Delta environment in Northern California. The feeder takes advantage of large volumes of water when available from Northern California, depositing it in surface storage reservoirs, such as Diamond Valley Lake, and local groundwater basins for use during dry periods and emergencies. This improves the quality of Southern California drinking water by allowing more uniform blending of better quality water from the state project with Colorado River supplies, which has a higher mineral content. The feeder system includes three large tunnels, two running thro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silverwood Lake
Silverwood Lake is a large reservoir in San Bernardino County, California, United States, located on the West Fork Mojave River, a tributary of the Mojave River in the San Bernardino Mountains. It was created in 1971 as part of the State Water Project by the construction of the Cedar Springs Dam as a forebay on the long California Aqueduct (consequently inundating the former town of Cedar Springs), and has a capacity of . Specifications Silverwood Lake is located on the East Branch of the California Aqueduct. It is operated by the California Department of Water Resources and provides a major water source for agencies serving nearby San Bernardino Mountain and Mojave Desert areas. Some of recreation land surround the lake. At an elevation of , Silverwood Lake is the highest reservoir in the State Water Project. Silverwood Lake State Recreation Area The Silverwood Lake State Recreation Area is one of many California State Parks features picnicking, hiking trails, swimmi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactical To Practical
''Tactical to Practical with Hunter Ellis'' is a program that ran from 2003 to 2005 on The History Channel. Each episode documents ways in which technologies utilized by the civilian public were originally developed to serve military purposes. The show is hosted by Hunter Ellis Hunter Ellis (born July 5, 1968 in Alexandria, Virginia) is an Americans, American military veteran and television personality. A former naval aviator, he was first noted for his participation on ''Survivor (TV series), Survivor'' before going .... External links * * History (American TV channel) original programming 2003 American television series debuts 2005 American television series endings {{US-tv-prog-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Forest Service
The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency include the Chief's Office, National Forest System, State and Private Forestry, Business Operations, and Research and Development. The agency manages about 25% of federal lands and is the only major national land management agency not part of the U.S. Department of the Interior, which manages the National Park Service, the U.S. Fish and Wildlife Service, and the Bureau of Land Management. History The concept of national forests was born from Theodore Roosevelt's conservation group, Boone and Crockett Club, due to concerns regarding Yellowstone National Park beginning as early as 1875. In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Route 330
State Route 330 (SR 330) is a state highway in the U.S. state of California, connecting SR 210 in the city of San Bernardino with the San Bernardino National Forest and SR 18 at Running Springs. SR 330 is also known as City Creek Road in the San Bernardino Mountains. Route description At its southern terminus, SR 330 begins in San Bernardino at SR 210. It is a freeway for approximately a mile, then turns into a conventional two-lane highway. It runs northeasterly from the San Bernardino Valley into the mountains to Running Springs, where it ends at State Route 18. The entire route is in San Bernardino County. SR 330 consists of approximately of six-percent grade road, and is one of three roads from the San Bernardino Valley to the resorts of the San Bernardino National Forest. It alternates between long, straight stretches and curved sections. There are three passing lanes, at the level, the level, and the level. SR 330 is part of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Fault
The San Andreas Fault is a continental transform fault that extends roughly through California. It forms the tectonics, tectonic boundary between the Pacific Plate and the North American Plate, and its motion is Fault (geology)#Strike-slip faults, right-lateral strike-slip (horizontal). The fault divides into three segments, each with different characteristics and a different degree of earthquake risk. The slip rate along the fault ranges from /yr. It was formed by a transform boundary. The fault was identified in 1895 by Professor Andrew Lawson of University of California, Berkeley, UC Berkeley, who discovered the northern zone. It is often described as having been named after San Andreas Lake, a small body of water that was formed in a valley between the two plates. However, according to some of his reports from 1895 and 1908, Lawson actually named it after the surrounding San Andreas Valley. Following the 1906 San Francisco earthquake, Lawson concluded that the fault extende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals. Granite is nearly alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Rock
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but gradually recrystallizes to a new texture or mineral composition. The protolith may be an igneous, sedimentary, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by their protolith, their chemical and mineral makeup, and their texture. They may be formed simply by being deeply buried beneath the Earth's surface, where they are subject to high temperatures and the great pressure of the rock layers above. They can also form from tectonic processes such as continental collisions, which cause horizontal pressure, friction, and distorti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratum
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as either being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Fire
The Old Fire was a large complex wildfire that started on October 25, 2003 (the original Old Fire began on October 25), near Old Waterman Canyon Road and California State Route 18 in the San Bernardino Mountains, in San Bernardino County, Southern California, United States. The Old Fire caused at least $1.2 billion in damages. The Old Fire was one of 15 wildfires throughout Southern California that month, which became known as the "2003 Firestorm" and the "Fire Siege of 2003.""The Story-One Year Later: An After Action Review" U.S. Forest Service This included the huge |
Tunnel Boring Machine
A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore through hard rock, wet or dry soil, or sand. Tunnel diameters can range from (micro-TBMs) to to date. Tunnels of less than a metre or so in diameter are typically done using trenchless construction methods or horizontal directional drilling rather than TBMs. TBMs can be designed to excavate non-circular tunnels, including u-shaped, horseshoe, square or rectangular tunnels. Tunnel boring machines are used as an alternative to drilling and blasting (D&B) methods in rock and conventional "hand mining" in soil. TBMs have the advantages of limiting the disturbance to the surrounding ground and producing a smooth tunnel wall. This significantly reduces the cost of lining the tunnel, and makes them suitable to use in urban areas. The major disadvan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Route 18
State Route 18 (SR 18) is a state highway in the U.S. state of California. It serves as a primary route into the San Bernardino Mountains, both from the Riverside–San Bernardino metropolitan area from the south and the Mojave Desert from the north. SR 18 runs from State Route 210 in San Bernardino to State Route 138 in Llano. It has two discontinuities: one in Big Bear Lake, the other in Victorville. Route description The constructed portion of Route 18 begins at State Route 210 and quickly enters the San Bernardino Mountains as a four-lane expressway. SR 18 is known as Waterman Avenue in the city of San Bernardino before turning into SR 18. The route climbs north at a gentle grade until it turns east, where it begins to offer panoramic views of San Bernardino. Hence, this portion of Route 18 is known as the Rim of the World Highway. After meeting State Route 138 at Mount Anderson Junction south of Crestline, the expressway reverts to a two-lane mountain road. It meet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Academy Of Environmental Engineers And Scientists
The American Academy of Environmental Engineers and Scientists (AAEES) is a society of professional engineers and scientists who have demonstrated special expertise in environmental engineering or science beyond that normally required for professional practice. The principal purpose of the Academy is serving the public by improving the practice, elevating the standards, and advancing public recognition of environmental engineering and science through a program of specialty certification, similar to that used in healthcare and other professions. History The Academy began in 1952, when a group of sanitary engineers working in the public health and defense communities expressed concern about the requirements for professional practice. This led to the creation of the Committee for the Advancement of Sanitary Engineering of the American Society of Civil Engineers (ASCE). Later, the Joint Committee for the Advancement of Sanitary Engineering was formed, composed of representatives from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
